Home / 521,939.43-782,717.12-180,295.92

Finding the Fourth Proportional to 521,939.43, 782,717.12 and 180,295.92

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Solution

The fourth proportional to 521,939.43, 782,717.12 and 180,295.92 is: 270,377.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,939.43 : 782,717.12 = 180,295.92 : x
  2. Step 2: Convert to fraction form
    521,939.43/782,717.12 = 180,295.92/x
  3. Step 3: Cross multiply
    521,939.43x = 782,717.12 × 180,295.92
  4. Step 4: Simplify right side
    521,939.43x = 141,120,703,488.59
  5. Step 5: Solve for x
    x = 141,120,703,488.59/521,939.43
  6. Step 6: Final answer
    x = 270,377.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.